Dry converter coal gas dust-removal system and explosion protection device thereof

Abstract

The invention relates to a dry converter coal gas dust-removal system and an explosion protection device thereof. The system comprises a cooling device, a dust remover, an explosion protection device, a draught fan and a switching station; an explosion protection device is connected with flue gas pipelines which are arranged between the cooling device and the dust remover, a draught fan connected with the dust remover and a switching station, wherein the explosion protection device comprises a gas composition analyzer, a gas injecting device and a control device, wherein the gas composition analyzer used for detecting CO and O2 content in the flue gas is arranged on the inlet flue gas pipeline of the dust remover; the gas injecting device is arranged on the flue gas pipelines which are arranged between the gas composition analyzer and the dust remover; the control device compares the CO and O2 content detected by the gas composition analyzer with explosion limit concentration to control the open or close of the gas injecting device; the draught fan is connected with the dust remover, the inlet of the switching station is connected with the draught fan, the outlet is respectively connected with a spread chimney and a coal gas cabinet and is in charge of switching set of flue gas pipelines between the spread chimney and the coal gas cabinet. The invention can reduce explosion rate of the dust remover.

Description

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AI Technical Summary

Benefits of technology

This new technology solves problems with traditional methods for preventing fires caused by unconventional means such as fire hoses or pipes used during manufacturing processes. It also prevents damage from high temperatures while maintains efficient combustion efficiency without causing excess smoke emissions.

Problems solved by technology

This technical problem addressed in this patents relates to improving the design of converters used in steel making processes such as electric arc furnaces. These devices have several issues: (1) Gas turbulence causes rapid ignition when there is no fuel injection while still producing harmful emissions due to unmixed oxidized products, (2) Oil mist generated during startup reduces efficiency and durability of these systems, (3) Interruptions between regular operations cause damage to equipment and workers, and(4) To prevent fires, certain methods like fire exchangers may operate continuously but they cannot effectively reduce smoke production.

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